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US 6,120,218 AGranted
Planing tool
OwnerTodd Bishopinventor
Life of this patent
Estimating the term…
Abstract
A rotary cutting tool having a mounting portion with a plurality of mounting sections, each having a radially aligned pocket to receive a cutting insert. There is a positioning and actuating assembly by which a related wedge block can be positioned in its related pocket in wedging engagement with its cutter insert. The side walls of each pocket converge in a radially outward direction so that centrifugal force of the rotating causes the wedge blocks and the cutters to come into a firmer wedging engagement. The positioning and holding assembly can be moved from its retaining position to permit individual cutting inserts to be moved or replaced. A center bolt assembly moves a central portion of the positioning and holding assembly vertically so as to cause retaining arms to move into and out of retaining engagement with related wedge blocks.
Claims41
A rotary tool having a center axis of rotation, said tool comprising:
- a) a mounting structure positioned and arranged to rotate about said axis;
- b) said mounting structure having a plurality of radially outwardly positioned mounting sections, each mounting section having a pair of side walls which define a related pocket which is aligned to have a substantial radial alignment component, said pair of side walls converging toward one another in a converging direction which has a radially outward directional component, each pocket being arranged to have a related cutting insert positioned therein in its cutting position;
- c) a holding assembly comprising a plurality of positioning and wedging portions for related mounting sections, each of said positioning and wedging portions comprising a wedging block portion, each positioning and wedging portion having a cutting insert retaining position where the insert and the wedging block portion are positioned in the related pocket where side bearing surfaces of the wedging block portion and side bearing surfaces of the cutting insert are in load bearing relationship between the related side walls of the pocket in a wedging relationship therewith, and an actuating portion which is in operative engagement with the positioning and wedging portions, said actuating portion being moveable to a retaining position to apply force to cause the wedging block portions and the inserts to be urged into wedging relationship with the related two converging side walls;
- d) said actuating portion comprising a plurality of actuating devices operatively engaging a related positioning and wedging portion, each of said actuating devices resiliently urging the related positioning and wedging portion toward its retaining position, with each of said actuating devices being resiliently deflectable so as to be able to be moved to reduce wedging engagement and permit movement or removal of the related insert;
- whereby the actuating devices are arranged to be moved to retaining positions to hold the cutting inserts in proper location, and then be moved from the retaining position to reduce said force and thus reduce the force of wedging engagement and permit the inserts to be adjusted or removed and/or replaced.
2 more elements
A rotary tool having a center axis of rotation, said tool comprising:
- a) a mounting structure positioned and arranged to rotate about said axis;
- b) said mounting structure having a plurality of radially outwardly positioned mounting sections, each mounting section having a pair of side walls which define a related pocket which is aligned to have a substantial radial alignment component, said pair of side walls converging toward one another in a converging direction which has a radially outward directional component, each pocket being arranged to have a related cutting insert positioned therein in its cutting position;
- c) a holding assembly comprising a plurality of positioning and wedging portions for related mounting sections, each of said positioning and wedging portions comprising a wedging block portion, each positioning and wedging portion having a cutting insert retaining position where the insert and the wedging block portion are positioned in the related pocket where side bearing surfaces of the wedging block portion and side bearing surfaces of the cutting insert are in load bearing relationship between the related side walls of the pocket in a wedging relationship therewith, and an actuating portion which is in operative engagement with the positioning and wedging portions, said actuating portion being moveable to a retaining position to apply force to cause the wedging block portions and the inserts to be urged into wedging relationship with the related two converging side walls;
- d) said actuating portion comprising a plurality of positioning arms extending radially outwardly, with each of said positioning arms engaging a related positioning and wedging portion, each actuating portion further comprising an actuating sub-assembly which comprises a central portion to which said actuating arms are connected, and outer ends of said actuating arms are movable to the retaining positions from said central portion of the actuating sub-assembly, whereby the actuating portion is arranged to be moved to its retaining position to hold the cutting inserts in proper location, and then be moved from the retaining position to reduce said force and thus reduce the force of wedging engagement and permit the insert to be adjusted, removed or replaced.
1 more element
A rotary tool having a center axis of rotation, said tool comprising:
- a) a mounting structure positioned and arranged to rotate about said axis;
- b) said mounting structure having a plurality of radially outwardly positioned mounting sections, each mounting section having a pair of side walls which define a related pocket which is aligned to have a substantial radial alignment component, said pair of side walls converging toward one another in a converging direction which has a radially outward directional component, each pocket being arranged to have a related cutting insert positioned therein in its cutting position;
- c) a holding assembly comprising a plurality of positioning and wedging portions for related mounting sections, each of said positioning and wedging portions comprising a wedging block portion, each positioning and wedging portion having a cutting insert retaining position where the insert and the wedging block portion are positioned in the related pocket where side bearing surfaces of the wedging block portion and side bearing surfaces of the cutting insert are in load bearing relationship between the related side walls of the pocket in a wedging relationship therewith, and an actuating portion which is in operative engagement with the positioning and wedging portions, said actuating portion being moveable to a retaining position to apply force to cause the wedging block portions and the inserts to be urged into wedging relationship with the related two converging side walls;
- d) said actuating portion resiliently held in its retaining position, and there is resilient deflecting means against which the actuating portion can be moved in the direction away from its retaining position, whereby the actuating portion can be moved to reduce force of wedging engagement of the cutting inserts to allow movement and/or removal of cutting inserts, and the actuating portion is arranged to be moved to its retaining position to hold the cutting inserts in proper location, and then be moved from the retaining position to reduce said force and thus reduce the force of wedging engagement and permit the insert to be adjusted and/or removed and/or replaced.
1 more element
A rotary tool having a center axis of rotation, said tool comprising:
- a) a mounting structure positioned and arranged to rotate about said axis;
- b) said mounting structure having a plurality of radially outwardly positioned mounting sections, each mounting section having a pair of side walls which define a related pocket which is aligned to have a substantial radial alignment component, said pair of side walls converging toward one another in a converging direction which has a radially outward directional component, each pocket being arranged to have a related cutting insert positioned therein in its cutting position;
- c) a holding assembly comprising a plurality of positioning and wedging portions for related mounting sections, each of said positioning and wedging portions comprising a wedging block portion, each positioning and wedging portion having a cutting insert retaining position where the insert and the wedging block portion are positioned in the related pocket where side bearing surfaces of the wedging block portion and side bearing surfaces of the cutting insert are in load bearing relationship between the related side walls of the pocket in a wedging relationship therewith, and an actuating portion which is in operative engagement with the positioning and wedging portions, said actuating portion being moveable to a retaining position to apply force to cause the wedging block portions and the inserts to be urged into wedging relationship with the related two converging side walls;
- d) said actuating portion portion comprises a plurality of positioning arms extending radially outwardly, with each of said positioning arms engaging a related positioning and wedging portion to exert a radially outwardly directed force against the wedging portions individually operable to be able to move its related positioning and wedging portion into and out of its retaining position, so that individual cutting inserts are arranged to be moved and/or removed;
- whereby the positioning arms of the actuating portion are arranged to be moved to retaining positions to hold the cutting inserts in proper location, and then be moved from the retaining position to reduce said force and thus reduce the force of wedging engagement and permit the insert to be adjusted, removed or replaced.
2 more elements
A rotary tool having a center axis of rotation, said tool comprising:
- a) a mounting structure positioned and arranged to rotate about said axis;
- b) said mounting structure having a plurality of radially outwardly positioned mounting sections, each mounting section having a pair of side walls which define a related pocket which is aligned to have a substantial radial alignment component, said pair of side walls converging toward one another in a converging direction which has a radially outward directional component, each pocket being arranged to have a related cutting insert positioned therein in its cutting position;
- c) a holding assembly comprising a plurality of positioning and wedging portions for related mounting sections, each of said positioning and wedging portions comprising a wedging block portion, each positioning and wedging portion having a cutting insert retaining position where the insert and the wedging block portion are positioned in the related pocket where side bearing surfaces of the wedging block portion and side bearing surfaces of the cutting insert are in load bearing relationship between the related side walls of the pocket in a wedging relationship therewith, and an actuating portion which is in operative engagement with the positioning and wedging portions, said actuating portion being moveable to a retaining position to apply force to cause the wedging block portions and the inserts to be urged into wedging relationship with the related two converging side walls;
- d) said actuating portion comprising a plurality of individual actuating devices, each of which has an engaging portion to engage a related positioning and wedging portion to exert a radially outward force, and each of said actuating devices is individually operable to be able to move its related positioning and wedging portion into its retaining position and retracted, so that individual cutting inserts are arranged to be moved or removed;
- whereby the actuating devices can each be moved to its retaining position to hold the cutting inserts in proper location, and then be moved from the retaining position to permit the insert to be adjusted, removed or replaced.
2 more elements
The tool as recited in claim 39, wherein said individual actuating devices are each operatively engaging a related wedging block portion.
Dependencies are inferred from the claim text.